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2 Sheet's' -Sheet 1.

Q (No Model.)

H. CUTLER. AUTOMATIC GRAIN WEIGHING SCALE.

Patented Dec. 20, 1887.

NVENTOR:

ATTOREYS.

(No Model.) 2 Sheets-Sheet 2.

H. CUTLER.

AUTOMATIC GRAIN WEIGHING SCALE. No. 375,267. Patented Dec. 20, 1887*.

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G' I 1. I -u aw/ ATTORNEYS.

UNITED STATES PATENT OFFICE.

HENRY CUTLER, OF NORTH \VILBRAHAM, MASSACHUSETTS, ASSIGNOR TO HENRY NVILLIS CUTLER, OF SAME PLACE.

WE| GH|NG SCALE.

SPECIFICATION forming part of Letters Patent N0.375,267, dated December 20, 1887.

Application tiled Marxh 12, 1887. Serial No. 230,640. (No model.)

T at whom it may concern.-

Be it known that I, HENRY CUTLER, of North Wilbraham, in the county of Hampden and State of Massachusetts, have invented a newand Improved Automatic\Veighing-Scale,

of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved scale for weighing grain,

which is simple and durable in construction and automatic in operation.

The invention consists in various parts and details and combinations of the same, as will be fully described hereinaftenand then pointed I 5 out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improve ment with parts in section. Fig. 2 is an end elevation of parts of the same with parts in section. Fig. 3 is an enlarged end elevation of the lower part of the oscillating lever and its bearing with parts in section. Fig. 4 is an end elevation of the drop-bottom of the grain-receptacle. Fig. 5 is a sectional side elevation of the oscillating lever on the lines y y of Fig. 8. Fig. 6 is a similar view of the same on the lines z of Fig. 3; and Fig. 7 is an enlarged end view of the lower end of the oscillating lever with its bearing in section.

My improved weighing-scale A is mounted on a central standard, B, on the upper end of which is secured the bearing 0, provided with the offsets 0, each having a V-shaped groove, 0 in which rests the V-shaped lower end, D, of the oscillating lever D. 'In the middle of the lower end of the latter is secured to the 40 bearing 0 a curved plate, 0', which bears on the upwardly-turned knife-edge plate D attached to the lever D. The curved plate 0 holds the three knife-edge bearings D, D, and D in place, and prevents an upward motion 5 of the levers D. The set-screws G, screwing in the bearing 0 and against the edges of the ends D, prevent a lateral motion of the oscillating lever D, but permit an oscillating movement of the same.

Near the upper end of the oscillating lever wise at equal distances on both sides of the lever D. In the cylinder E travels a ball, E, and the ends of the said cylinder are adapted to rest alternately on the arms F, with which 5 the said ends of the cylinder E come in contact when the lever D oscillates. The arms F extend from the bracket F, secured to the central standards, B.

Between the cylinder E and the fulcrum of the oscillating lever D are arranged the arms G, extending equal distances from both sides of the lever D, and on each arm G is pivoted a lever, G, limited in its upward movement by a stop-pin, G on the respective arm G. The outer end of eachnlever G is loosely connected with the lower end of the S-shaped hook H, hung with its upper end on the knifeedge bearing I, projecting from the inner end of the weighingbeam I, fulcru med on the arm F secured to the bracket F. The weighingbeam I is provided with the usual poise, 1 and with the regulatingball I screwing on the rod 1, held on the beam I.

The outer end of each weighingbeam I supports a second weighing-beam, J, of standard construction, and on which is hung the grain box K, provided on each side of its separate cap with a rod, K, passing through an eye,

K on the box K, and provided on its lower end with a nut, K'', on which rests one end of the spring K", coiled on the said rod K between the nut K and the eye K Each box K is also provided with a hinged drop-bottom,

L, having a counter-weight, L, on one end andadapted to engage at its otherend a catch, N, pivoted on the box K and operated by a tube-lever, O, fulcrumed on the standard B.

In the tube-lever 0 travels a ball, 0. Gentrally above the standard B is placed apivot, 0 P, secured to a suitable beam, P, and on this pivot P oscillates the grain-spout Q, held in an inclined position in relation to the boxes K and provided on its upper end with the receivingfunnel Q. The lower end, Q", of the spout Q is adapted to open alternately into the spouts R, secured to a beam, S, and lead ing to the respective boxes K.

The lower end, Qflof the grain-spout Q,when traveling from one fixed spout R to the other, IOO is closed by a segmental rim, T, held on the said beam S.

The grain-spout Q is operated from the 0s cillating lever D, which-is connected at its upper end by the rods U with one end of the levers V, respectively pivoted on the beam 1? and connected by the link W with the end of the funnel Q of the spout Q.

The operation is as follows: In the position shown in Fig. 1 the box K to the right of the standard B is to be filled with grain entering the funnel Q of the spout Q and passing, by means of the stationary spout B, into the box K. As soon as the weight of the grain in the box K corresponds to the weight to which the beams I and J are set, then the inner end of the beam I moves upward and acts by the S-shaped hook II on the lever G, which by its connection with the arm G causes the lever D to tilt to the left, whereby the several moving parts are thrown into the position shown in dotted lines in Fig. 1. The tilting motion of the lever D is stopped when the cylinder E strikes the arm F on the left side. The spout Q is turned on its pivot by the movement of the lever D, which acts by the rods U on the levers V, and the latter by the links W turn the spout Q. Grain entering the spout Qwhile the latter oscillates accumulates in the lower end, Q", as the opening of the latter is closed by the rim T. \Vhen the box K has received part of its load of grain, then the weight of the grain will compress the springs K, and the box will settle sufiiciently to move the right end of the lever-tube 0 below its fulcrum, so that the ball 0', which is in the other end of the tube 0, will roll over to the end of the lever near the box K filled with grain.

As soon as the box K is filled, it commences to move downward, operating the weighingleft of the standard B, then the same operation as above described takes place on the left side of the device. \Vhen the weighing takes place on the one side, the S-shaped hook H' on the other side hangs free and is disconnected from the respective arm G until the weighing-beam I on the other side moves upward. Thus the latter is not aifected in weighing correctly by the double arrangement. When the lever D oscillates and passes a vertical position, then the ball E rolls to the upper side, thus finish- 'ing the stroke of the lever D without the assistance of the respective weighing-beam I.

It will be seen that the standard scales J, which are set to a certain weight, indicate any inaccuracies which may occur, while the upper beam I determines the weight of the load. Theinevitable daily changein specific gravity, as well as in the velocity at which the grain runs into the boxes K, will cause some little inaccuracies, which are detected by the beams J and corrected by adjusting the poise on the beam I.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In a weighing-scale, the combination,with an oscillating lever, of weighing-beams loosely connected by S-shaped hooks with the said lever, grain boxes supported on the said beams, and a pivoted grain spout adapted to connect alternately with the said grain-boxes and operated from the said oscillating lever, substantially as shown and described.

2. In a weighing-scale, the combination, with an oscillating lever, of stop-plates limiting the movement of the said lever, S-shaped hooks connected with the said lever, weighing-beams supporting the said hooks, and grainboxes supported on the said weighing-beams, substantially as shown and described.

3. In a weighi ng-scale, the combination,with an oscillating lever having arms, of a leverarm pivoted on each of the said arms and having its upward movement limited by a stop under said arm, and an S-shaped hook adapted to engage the said lever-arm, and a weighing beam supporting the said hook, substantially as shown and described.

4. In a weighing-scale, an oscillating lever having arms, a cylinder mounted on the said lover, a ball held loosely in the said cylinder, and stop-plates for limiting the movement of the said lever, in combination with a leverarm pivoted to each of the said arms of the oscillating lever, an S-shaped hook adapted to engage the said lever-arm, and a weighing beam supporting the said hook, substantially as shown and described.

5. In aweighing-scale, the combination,with theweighing-beams, of yielding boxes held on the said beams, a counterweighted drop bottom hinged on' caeh of the said boxes, and means, as described, for locking and unlocking the said drop-bottoms on the said boxes, substantially as set forth.

6. In a weighingscale, the combination,with

the yielding grainboxes, of a drop-bottonr hinged on each of the said boxes, a springcatchpivoted on each of the said boxes and adapted to engage the said drop-bottom, a tube-lever adapted to engage the said springcatches, and a ball traveling in the said tubelever, substantially as shown and described.

HENRY CUTLER.

Witnesses:

I'IENRY A. Looms, HOWARD It. BEMIs. 

